Hi Skye Gaffney,
Good day! Thank you for posting to Microsoft Community. We are happy to help you.
I’m sorry to hear that you’re having trouble with inserting a chart in PowerPoint. It seems like you have already performed some essential basic troubleshooting steps. Could you please also check your office updates to make sure that both Excel and PowerPoint are updated to the latest version. Update Office for Mac automatically - Microsoft Support
We appreciate your understanding that sometimes the initial suggestion may not resolve the problem very soon. However, we can work together to narrow down and resolve the situation. So, please kindly provide more information below to let us work further.
- Which version is your MacOS.
- Which version is your Office suite mainly Excel and PowerPoint.
3. Are you still unable to insert the chart in PowerPoint if you boot your Mac in safe mode.
Appreciate your patience and understanding and thank you for your time and cooperation.
Sincerely,
Ralph Chawatama | Microsoft Community Moderator